Steep and snowy, the racecourse jutted almost vertically in front of my face. It was my third day in Vail, Colo., where earlier this month I competed in a variety of events during the Winter Teva Mountain Games.
A few dozen runners, skiers, and snowshoers lined up around me. At the “Go!” the pack took off, a stampede of athletes preparing to move uphill on snow for two miles to a finish line above 10,000 feet.

The event, called simply the Vail Uphill, required specialized equipment to move fast and grip the snow. Some racers, including top finishers, wore track-spike shoes or hybrid footwear custom-made for the race. You could also wear skis (with skins on) or snowshoes for the climb.

I laced up a pair of waterproof La Sportiva trail-running shoes and cinched steel coils over the soles. Specifically, the traction add-ons came from Yaktrax LLC, a company that’s long made products for people needing a better grip on ice and snow.
Yaktrak’s Pro model is a simple design, including a rubber shoe harness, a Velcro strap, and the steel wire underfoot. They are easy to get on and off. Once on a shoe, cinched tight with the Velcro strap, the Yaktrax Pro stay firmly in place. On the Vail course, despite 45 minutes of uphill running, my Yaktrax did not move an inch.




